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Sequential Analysis of the Integrated Images of PET, CT and MR in Malignant Brain Tumors Before and After Radiotherapy Akira Suzuki 1 , Katsuyoshi Mineura 1 , Toshio Sasajima 1 , Masayoshi Kowada 1 , Toshihide Ogawa 2 , Jun Hatazawa 2 , Kazuo Uemura 2 1Neurosurgical Service, Akita University Hospital 2Department of Radiology and Nuclear Medicine, Research Institute for Brain and Blood Vessels-Akita Keyword: intracranial malignant lymphoma(ICML) , glioma , positron emission tomography(PET) , 11C-methyl)—L-methionine(C−11 Met) , radiotherapy(RT) pp.449-457
Published Date 1996/5/1
DOI https://doi.org/10.11477/mf.1406900948
  • Abstract
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11C-methyl-L-methionine (C-11 Met) PET, CT and MR imaging were performed in eleven patients with malignant brain tumors before and after RT to evaluate the usefulness of positron emission tomo-graphy (PET) in monitoring tumor response to radiotherapy (RT). The subjects included five cases of intracranial malignant lymphoma (ICML) and six cases of glioma.

C-11 Met uptake by the tumor (T) and the contra-lateral gray matter (NT) was calculated on the PET images. The mean T/NT ratio of the ICMLs and gliomas changed from 2.33 and 1.87, respective-ly, before RT to 1.31 and 1.58, respectively, after RT.


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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